use the latest Telco or Advanced Enterprise feature set. MPLS L3VPN (P and PE) and MPLS TE is supported. Some features might be missing compared to high end routers but the 3640 will still allow you to investigate MPLS in great detail.
If you are interested in configuration of f.e. VLANoMPLS I would also recommend to have a look at the c7200 router simulator allowing you to boot a REAL IOS with all the features of a 7200.
Introduction: The "external-out enable" command is available for
configuration under the "router ospf process" in case of the IOS-XR
operating system. This command basically enables advertisement of
intra-area routes on the device as external routes in th...
Introduction Basic configuration for netflow Scale parameters for
netflow Netflow support Architecture Packet flow for netflow Inside the
LC CPU Netflow Cache size, maintenance and memory Sample usage Cache
Size Aging Permanent cache Characteristics Which...